NWS Forecast Office Houston/Galveston, TX

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Last Map Update: Thu, Aug 13, 2026 at 2:42:28 am CDT

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Heat Advisory

Today

Friday

Stay Safe From The Heat

WBGT Forecast

The Outlook Ahead

Hot weather is expected today with highs in the 90s, nearing triple digits. Heat indices will range from 102-111 degrees. 20% Chance for showers in the afternoon. With these hot conditions, remember to stay hydrated and take breaks indoors to cool off.

Hot weather is expected on Friday with highs in the 90s, nearing triple digits. Heat indices will range from 102-112 degrees. There is a 20-30% chance for showers and thunderstorms in the afternoon. With these hot conditions, remember to stay hydrated and take breaks indoors to cool off.

During the next several days, the high temperatures will peak in the mid to upper 90s and heat indices will range between 104-110 degrees in the afternoons. It is imperative to practice Heat Safety wherever you are. Make sure to stay hydrated, limit outdoor activities, take frequent breaks from the sun, and never leave kids or pets unattended in vehicles.

Afternoon WBGT values are forecasted to range from 85-91 today and Friday. Extreme values of 90 or more are possible in some locations between 1-4 pm.

Hot and humid conditions continue with high temperatures in the 90s to triple digits. Max Heat indices are expected to reach 102 110 degrees. While most areas will remain dry, there is a possibility of isolated showers and storms forming along the sea breeze each day, especially on Friday. Please practice heat safety by checking on the elderly, children, and pets, staying cool and hydrated, and wearing light-weight, light-colored clothing.

Current Weather Observations...

Location	Time (CDT)	Weather	Vsby. (SM)	Temp. (ºF)	Dewpt. (ºF)	Hum. (%)	Wind (mph)	Wind Chill / Heat Index (ºF)	Pres. (in)
Bryan	02:15	Mostly Cloudy	10	81	76	84	S 14G20	-	29.97
College Station	02:11	Mostly Cloudy	10	81	76	84	S 13	-	29.95
Caldwell	02:15	Clear	10	80	75	83	S 13G16	-	29.97
Huntsville	01:53	Clear	10	81	76	84	S 8	-	29.97
Navasota	02:15	Clear	10	79	79	100	S 8	-	29.95
Brenham	02:15	Clear	10	80	76	88	S 8	-	29.95
Conroe	01:53	Clear	10	82	77	84	S 9	-	29.97
Cleveland	02:15	Clear	7				CALM	-	29.98
Liberty	02:15	Mist	4	78	78	100	CALM	-	29.96
Columbus	02:15	Clear	10	79	77	93	S 6	-	29.97
Spring	01:53	Clear	8	81	77	87	S 5	-	29.97
Houston Intercontinental Aprt	01:53	Mostly Clear	10	83	78	85	S 7	93 [HI]	29.97
Katy/Brookshire	02:15	Clear	7	80	78	94	SSW 8	-	29.98
Texas Medical Center Heliport	02:15	Mostly Clear	10	82	78	88	S 12G21	91 [HI]	29.96
Sugar Land	01:53	Clear	10	81	78	90	S 12	-	29.96
Houston Hobby Airport	01:53	Clear	9	82	77	84	S 10	-	29.96
Arcola/Sienna	02:15	Clear	7	79	76	88	CALM	-	29.98
Pearland	01:53	Clear	9	82	77	84	S 6	-	29.98
Ellington Field	01:54	Clear	10	80	77	88	SSE 6	-	29.96
La Porte	02:15	Partly Cloudy	10	82	77	83	S 7	-	29.98
Wharton	02:15	Clear	10	80	76	88	SSE 8	-	29.98
Angleton/Lake Jackson	01:53	Clear	10	81	77	87	S 9	-	29.98
Galveston	01:52	Partly Cloudy	10	85	78	80	S 14	97 [HI]	29.99
Bay City	02:15	Clear	10	81	80	98	SSE 8	91 [HI]	29.93
Palacios	01:53	Mostly Clear	10	85	77	77	S 12	95 [HI]	29.96
Rig 20 Miles SE of Matagorda	02:20		10	84	80	88	SSE 17	97 [HI]	30.01

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